Home / 340,404,969.90-509,851,627.65-279,938,793.90

Finding the Fourth Proportional to 340,404,969.90, 509,851,627.65 and 279,938,793.90

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Solution

The fourth proportional to 340,404,969.90, 509,851,627.65 and 279,938,793.90 is: 419,286,621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,404,969.90 : 509,851,627.65 = 279,938,793.90 : x
  2. Step 2: Convert to fraction form
    340,404,969.90/509,851,627.65 = 279,938,793.90/x
  3. Step 3: Cross multiply
    340,404,969.90x = 509,851,627.65 × 279,938,793.90
  4. Step 4: Simplify right side
    340,404,969.90x = 142,727,249,712,292,880
  5. Step 5: Solve for x
    x = 142,727,249,712,292,880/340,404,969.90
  6. Step 6: Final answer
    x = 419,286,621.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.